It
is a unit of concentration of solution.Definition:"Molarity is defined as the number of
moles of solute dissolve in 1dm3 of solution"Formula:Molarity = no. of moles of solute/volume
of solution in dm3OrMolarity = mass of solute in gms/molecular
mass of solute x volume of solution in dm3

MOLALITY

It is a unit
of concentration of solutionDefinition:"Molality is defined as the number of
moles of solute dissolved in 1kg of solvent"Formula:
Molality= no of moles of solute/mass of solvent in kgOrMolality = mass of solute in gm/molecular
mass of solute x mass of solvent in kg